42129108 ÷ 874 
The aim is to understand the frequency of 874 in 42129108.

Moving on to step 1:
If we divide 4 by 874, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 874

Step 2:
When dividing 42 by 874, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Take the next digit (1) from the dividend and append it to 42, then repeat: 421 / 874

Moving on to step 3:
874 goes into 421 0 times with a remainder of 421.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 421 leaves us with 421.
Bring next digit (2) of the dividend behind the 421 and repeat the process: 4212 / 874

Step 4:
874 can be fit into 4212 4 times, resulting in a remainder of 716.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 716 after subtracting 3496 from 4212.
Append the next digit (9) from the dividend to 716 and continue with: 7169 / 874

Advancing to step 5:
874 goes into 7169 8 times with a remainder of 177.
Write down 8 as next digit of the result. 
Result so far: 48.0
If we take 6992 away from 7169, we end up with 177.
Take the next digit (1) from the dividend and append it to 177, then repeat: 1771 / 874

On to step 6:
874 can be fit into 1771 2 times, resulting in a remainder of 23.
Record the quotient 2 as the next digit in the result. 
Result so far: 482.0
If we subtract 1748 from 1771, we get 23.
Include the next digit (0) from the dividend after 23, then repeat: 230 / 874

Advancing to step 7:
When dividing 230 by 874, we get 0 with a remainder of 230.
Put 0 as the next digit of the answer. 
Result so far: 4820.0
The remainder is 230 after subtracting 0 from 230.
Fetch the next digit (8) from the dividend, attach it to 230 and continue: 2308 / 874

Going ahead to step 8:
If we divide 2308 by 874, we get 2 and a remainder of 560.
The number 2 becomes the next digit in our result. 
Result so far: 48202.0
The remainder is 560 after subtracting 1748 from 2308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Going ahead to step 9:
5600 divided by 874 is 6 with a remainder of 356.
Put 6 as the next digit of the answer. 
Result so far: 48202.6
If we subtract 5244 from 5600, we get 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Moving on to step 10:
When dividing 3560 by 874, we get 4 with a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 48202.64
Subtract 3496 from 3560 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 11:
640 divided by 874 is 0 with a remainder of 640.
Write down 0 as next digit of the result. 
Result so far: 48202.64
Subtracting 0 from 640 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 12:
6400 divided by 874 is 7 with a remainder of 282.
Use 7 as the next digit of our solution. 
Result so far: 48202.6407
Subtracting 6118 from 6400 leaves us with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

On to step 13:
The number 874 fits into 2820 3 times, leaving a remainder of 198.
The number 3 becomes the next digit in our result. 
Result so far: 48202.64073
If we take 2622 away from 2820, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Moving on to step 14:
874 can be fit into 1980 2 times, resulting in a remainder of 232.
Put 2 as the next digit of the answer. 
Result so far: 48202.640732
The remainder is 232 after subtracting 1748 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Going ahead to step 15:
2320 divided by 874 is 2 with a remainder of 572.
Write down 2 as next digit of the result. 
Result so far: 48202.6407322
If we subtract 1748 from 2320, we get 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

After the division, we end up with 48202.6407322 and a remainder of 5.72e-06.